Theorem sbcieg 3758

Description: Conversion of implicit substitution to explicit class substitution. (Contributed by NM, 10-Nov-2005.)

Hypothesis

Ref	Expression
sbcieg.1	⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))

Assertion

Ref	Expression
sbcieg	⊢ (𝐴 ∈ 𝑉 → ([𝐴 / 𝑥]𝜑 ↔ 𝜓))

Distinct variable groups:   𝑥,𝐴   𝜓,𝑥

Allowed substitution hints:   𝜑(𝑥)   𝑉(𝑥)

Proof of Theorem sbcieg

Step	Hyp	Ref	Expression
1		nfv 1915	. 2 ⊢ Ⅎ𝑥𝜓
2		sbcieg.1	. 2 ⊢ (𝑥 = 𝐴 → (𝜑 ↔ 𝜓))
3	1, 2	sbciegf 3757	1 ⊢ (𝐴 ∈ 𝑉 → ([𝐴 / 𝑥]𝜑 ↔ 𝜓))

Syntax hints:   → wi 4   ↔ wb 209   = wceq 1538   ∈ wcel 2111  [wsbc 3720

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-12 2175  ax-ext 2770

This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-ex 1782  df-nf 1786  df-sb 2070  df-clab 2777  df-cleq 2791  df-clel 2870  df-v 3443  df-sbc 3721

This theorem is referenced by:  sbcie  3760  2nreu  4349  reuprg0  4598  rabsnif  4619  ralrnmptw  6837  ralrnmpt  6839  fpwwe2lem3  10044  nn1suc  11647  opfi1uzind  13855  mndind  17984  fgcl  22483  cfinfil  22498  csdfil  22499  supfil  22500  fin1aufil  22537  ifeqeqx  30309  nn0min  30562  bnj1452  32434  cdlemk35s  38233  cdlemk39s  38235  cdlemk42  38237  2nn0ind  39886  zindbi  39887  prproropreud  44026